Water is said to be permancutly hard when it contains – InterviewSolution

InterviewSolution

1.	Water is said to be permancutly hard when it contains
Answer» chlorides and sulphates of MG and CA bicarbonates of Na and K carbonates of Na and K phosphates of Na and K. Solution :Chlorides and sulphates of Ca and Mg cause PERMANENT hardness to water.

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